JP4539725B2 - Double glazing - Google Patents

Description

  The present invention relates to a multi-layer glass having a resonance member interposed in order to improve sound insulation performance.

  Multi-layer glass is generally formed by separating two plate glasses through a spacer, forming a hollow layer, and sealing the peripheral edge. In the case of rectangular double glazing, the spacers are arranged on the peripheral edges of the four sides of the plate glass. Both side surfaces of the spacer are bonded to the glass sheet by the primary seal, and the outer edge side is sealed by the secondary seal. In order to enhance the sound insulation performance indoors and outdoors, Patent Document 1 discloses a sound insulation structure of a multilayer glass in which a Helmholtz resonator is interposed between plate glasses. This sound insulation structure has a Helmholtz resonance with a rod-shaped resonance member having small holes penetrating at a predetermined interval at the peripheral edge of the glass sheet, and a sound absorbing portion having an air layer portion between the resonance member and the spacer. Forming a vessel. At this time, the position of the resonance member, the interval and the length of the small holes, etc. are set so as to obtain a desired resonance frequency. The resonance member is disposed between the two glass sheets on the inner edge side of the spacer along the spacer on the peripheral edge of the glass sheet and in parallel with the spacer.

  The resonance member is interposed between the plate glasses via an adhesive layer such as an adhesive. Thereby, the member for resonance is held. By arranging the resonance member at an appropriate position, an optimum resonance action can be obtained, and the sound insulation performance can be reliably improved. Such a hollow layer of double-glazed glass expands or contracts due to a change in internal pressure when there is a change in temperature. Since the plate glass bends accordingly, the adhesive layer between the resonance member and the plate glass also expands and contracts. When this expansion / contraction operation is repeated, a part of the adhesive layer is peeled off from the plate glass, bubbles are generated between the adhesive layer and the plate glass, appearance is deteriorated, resonance characteristics are changed, and sound insulation performance is lowered.

  As a solution to this problem, a multi-layer in which support legs for supporting the resonance member at a predetermined interval with respect to the spacer are attached between the resonance member and the spacer so as to be slidable in the longitudinal direction of the resonance member. A sound insulation structure of glass is disclosed in Patent Document 2. However, in the sound insulation structure described in Patent Document 2, particularly when applied to a large-sized opening such as a terrace window, the resonance member becomes long and the deflection due to its own weight cannot be ignored, and is provided intermittently. Since it is difficult to hold the resonance member straight with only the supporting legs, it is not preferable in appearance.

  On the other hand, although it has nothing to do with the sound insulation structure, Patent Document 3 describes a double-glazed glass in which an inclusion is provided between a plate glass and a plastic plate. This multi-layer glass has inclusions as a plurality of vertical lattices, and stably maintains the bonding strength between the plate glass and the plastic plate.

However, in the double glazing disclosed in Patent Document 3, a plurality of inclusions interposed between the plate glass and the plastic plate may affect the visibility through the double glazing, which makes the user feel uncomfortable.
JP 2003-63844 A JP 2005-104764 A JP-A-11-166373

  According to the present invention, the sound insulation performance by the resonance member can be stably obtained even when the hollow layer of the multilayer glass expands and contracts due to a temperature change, and bubbles and separation are generated between the adhesive layer of the resonance member and the plate glass. An object of the present invention is to provide a double-glazed glass that can be prevented from being deteriorated in appearance as a double-glazed glass.

  As a result of various studies to achieve the above object, the present invention pays attention to the contact state between the facing portion of the resonance member facing the plate glass and the plate glass, and the state of the adhesive interface between the resonance member and the plate glass on the plate glass surface. By controlling the sound, the sound insulation performance can be stably obtained, and the multi-layer can prevent deterioration of the appearance as a multi-layer glass without causing bubbles or peeling between the adhesive layer of the resonance member and the plate glass It has been found out that glass can be obtained. That is, the present invention provides the following multilayer glass.

  In addition, in this specification, adhesion includes fixation and adhesion. Here, the term “fixed” refers to a state where two surfaces are integrally bonded so that the adhesive cannot be solidified and peeled off, and is also referred to as permanent bonding. On the other hand, adhesion refers to a state in which two surfaces are temporarily bonded, which can be peeled off and can be bonded again after being peeled off, and is also referred to as temporary bonding.

According to the first aspect of the present invention, the peripheral edge of the plate glass is formed between at least two sheets of glass that are multi-layered so as to form a hollow layer at a predetermined interval by a spacer disposed on the peripheral edge of the plate glass, and parallel to the spacer. A multi-layer glass interposing a resonance member, wherein the opposing portions of the resonance member facing each of the first plate glass and the second plate glass constituting the two plate glasses are respectively the first plate glass. And the second plate glass are adhered by being adhered via an adhesive material made of any of acrylic acid ester copolymer, ethylene / vinyl acetate copolymer (EVA), and polyvinylidene chloride (PVDC). It is characterized by that.

According to the invention of claim 2, at the periphery of the plate glass between the at least two sheets of glass laminated at a predetermined interval by a spacer disposed at the periphery of the plate glass so that a hollow layer is formed, and in parallel with the spacer. A multi-layer glass interposing a resonance member, wherein an opposing portion of the resonance member facing the first plate glass of the two plate glasses is an acrylic ester copolymer, Adhered by adhering via an adhesive material made of either ethylene / vinyl acetate copolymer (EVA) or polyvinylidene chloride (PVDC) , facing the second plate glass of the two plate glasses The opposing portion of the resonance member is bonded to the second plate glass by being adhered thereto.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, an elastic member is provided at a facing portion of the resonance member to be bonded to the first plate glass and / or the second plate glass. It is a feature.

  As described above, the adhesion mentioned here includes fixation and adhesion.

  According to a fourth aspect of the present invention, in the third aspect of the invention, of the opposing portions of the resonance member facing the two plate glasses, the opposing portion bonded to the plate glass is curved in a convex shape. It is a feature.

  In the present specification, fixing includes structural adhesion and permanent adhesion that is not as strong as structural adhesion. Here, structural bonding requires permanent bonding and high strength retention. Bonding a structural member and withstanding a specific external force applied to the material is equivalent to or higher than that of the material. The bonding part is a structural unit that is integrated with the structure, and is bonded using an adhesive that maintains the same durability as the structural material when exposed to various environments.

  According to invention of Claim 1, the opposing part in the member for resonance which opposes each of 1st plate glass and 2nd plate glass is each adhere | attached by adhere | attaching on 1st plate glass and 2nd plate glass, respectively. Therefore, when the resonance member is bonded to the first plate glass, it can be attached again, and the workability of positioning the resonance member with respect to the plate glass is improved. In addition, if the contact is elastic, even if the hollow layer of the multilayer glass expands and contracts due to a temperature change and the sheet glass bends, the contact area at the interface where the adhesive material and the sheet glass surface contact with each other increases or decreases accordingly. By doing so, the deflection can be absorbed, so that the adhesive material is hardly stretched by being pulled by an external force. For this reason, the stress load on the plate glass is reduced, and an excessive force is not applied to the adhesive material (adhesive layer), and the hollow layer of the multilayer glass repeatedly expands and contracts, thereby destroying the adhesive material (adhesive layer). Thus, bubbles are not generated, and the appearance of the multilayer glass is not deteriorated. Furthermore, when manufacturing the resonance member, the resonance member main body portion can be made of a hard resin and the adhesive material can be simultaneously extruded and integrated as a soft resin, and the resonance member and the adhesive material can be integrated separately. Since the manufacturing process of the multi-layer glass is simplified as compared with the case of using the component parts, the productivity is improved.

  According to invention of Claim 2, the opposing part in the member for resonance which opposes the 1st plate glass is adhere | attached by sticking to 1st plate glass, and the opposing part in the member for resonance which opposes the 2nd plate glass is It adheres by adhering to the 2nd plate glass.

  For this reason, when the resonance member is bonded to the first glass sheet, it can be reattached, and the workability of positioning the resonance member with respect to the glass sheet is enhanced, and the resonance member is fixed to the second glass sheet. Also, the holding stability of the resonance member is excellent. In addition, if at least one adhesive layer on the adhesive side or the fixed side is made of an elastic member, even if the hollow layer of the multilayer glass expands and contracts due to a temperature change and the plate glass bends, the adhesive material accordingly Since the deflection can be absorbed by increasing or decreasing the contact area at the interface where the sheet glass surface contacts with the plate glass surface, the adhesive material is hardly stretched by being pulled by an external force. For this reason, the stress load on the plate glass is reduced, and an excessive force is not applied to the adhesive material (adhesive layer), and the hollow layer of the multilayer glass repeatedly expands and contracts, thereby destroying the adhesive material (adhesive layer). Thus, bubbles are not generated, and the appearance of the multilayer glass is not deteriorated.

  According to invention of Claim 3, since an elastic member is provided in the opposing part in the resonance member adhere | attached with 1st plate glass and / or 2nd plate glass, a hollow layer expand | swells and plate glass bends outside. However, the elastic member expands and follows this, and even if the hollow layer contracts and the plate glass bends inward, the elastic member contracts and deforms. Further, even if the plate glass is partially warped or has minute irregularities from the beginning, it can be interposed between the plate glasses by following this shape. Therefore, the elastic member is deformed in accordance with the bending or warping of the plate glass, and a stable sound insulation performance can be obtained by always keeping the resonance member and the plate glass in contact with each other. In particular, it is effective when the plate glass on the side provided with the elastic member is a plate glass having minute irregularities or undulations on the surface thereof, such as heat-treated plate glass or laminated glass such as tempered glass, or plate glass subjected to various surface treatments. . Furthermore, the adhesive layer fixed or adhered to the plate glass is hardly stretched by being pulled by an external force. For this reason, the stress load on the sheet glass is reduced, and an excessive force does not act on the adhesive layer, and the multilayer glass is repeatedly expanded and contracted, whereby the adhesive layer is broken and bubbles are generated. As a result, the appearance is not deteriorated, and stable sound insulation performance can be obtained. As the elastic member, the pressure-sensitive adhesive material itself can be made of an elastic material, or a double-sided adhesive tape in which adhesive layers are provided on both sides of an elastic base material can be used.

  According to invention of Claim 4, since the opposing part in the resonance member adhere | attached with plate glass is curving convexly, when adhering to plate glass, the distance between both glass plates which are decided by a spacer, and the width of resonance member It is possible to absorb the dimensional error and the assembly error between the two and reliably contact the bonding surface with the plate glass. Further, coupled with the provision of the elastic member at the opposing portion of the resonance member to be bonded to the first plate glass and / or the second plate glass, it is possible to drastically suppress the mixing of bubbles during bonding.

  On the other hand, when the resonance member is bonded (fixed or adhered) to at least one plate glass, the resonance member is securely held at that position with respect to the plate glass. Therefore, not only small windows but also large windows such as terrace windows are applied to a wide range of double glazing with a side of 300mm to 4000mm, and the resonance member is bent in the longitudinal direction by its own weight. This eliminates the need for a support member that maintains the distance between the resonance member and the spacer by connecting the support leg to the spacer, reducing the number of parts, simplifying the manufacturing process, and improving design. Multi-layer glass can be obtained.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

  In each of the embodiments described below, the members and the like that have been described once will be simplified or omitted by giving the same or corresponding reference numerals in the drawings.

  1A, FIG. 1B, and FIG. 1C are schematic views showing an outline of a multilayer glass, FIG. 1A is a front view, FIG. 1B is a cross-sectional view along BB in FIG. 1A, and FIG. It is a perspective view.

  As shown in the figure, in the multilayer glass 1, a resonance member 2 and a spacer 3 are disposed between two plate glasses 9A and 9B. The rod-shaped resonance member 2 is disposed on the hollow layer 17 side of the spacer 3 with a predetermined distance H in parallel with the spacer 3. The resonance member 2, the spacer 3, and the two plate glasses 9 </ b> A and 9 </ b> B are provided. A cavity 21 is formed. The resonance member 2 is a rod-shaped material having a substantially rectangular cross section, has a predetermined thickness L, and the resonance member 2 has a plurality of diameters d communicating the hollow layer 17 and the cavity 21. Small holes 10 are provided at predetermined pitch intervals P in the longitudinal direction (in the direction perpendicular to the paper surface in FIG. 1B) (FIG. 1C). A configuration in which the small holes 10 are continuously arranged in the resonance member 2 having a predetermined thickness is equivalent to a configuration in which Helmholtz resonators are continuously arranged.

  If a resonator having a desired resonance frequency can be configured, the resonance member 2 having various dimensions can be used, but the thickness L is 2 to 20 mm, the diameter d is 1 to 5 mm from the viewpoint of appearance and manufacturing, The pitch interval P is preferably 10 to 200 mm, and the distance H between the spacer 3 and the resonance member 2 is preferably about 5 to 50 mm. The width of the resonance member 2 is substantially equal to the interval W between the glass plates 9A and 9B. As the resonance member 2, various materials can be used. For example, hard resin, rubber, metal material, etc. are preferable because of low sound absorption. In addition, when the resonance member 2 is exposed to the inner side of a frame (not shown), it is preferable to form it with a transparent material in appearance. Therefore, it is preferable to use a transparent hard resin (for example, acrylic resin) as the resonance member 2. In addition, it is preferable that the surface of the resonance member 2, that is, the upper and lower surfaces of the resonance member 2 and the peripheral wall surface of the small hole 10 are finished smoothly because of low sound absorption. For example, the resonance member 2 may be provided only on one side or two sides of the multilayer glass 1, but is preferably provided along the entire circumference of the four sides. The resonance member 2 is provided in parallel with the spacer 3 and is bonded to at least the first plate glass 9A among the plate glasses 9A and 9B. The resonance member 2 may be held only by bonding with the first plate glass 9A and / or the second plate glass 9B, but both ends of the resonance member 2 in the length direction (for example, the multilayer glass 1) In the corner portion), it is preferable to provide a support member separately.

  The spacer 3 is a rectangular rectangular tube made of an extruded material such as aluminum or resin, and is filled with a desiccant 14. The spacer 3 keeps the distance between the two plate glasses 9A and 9B constant. Both side surfaces of the spacer 3 are bonded to the glass plates 9A and 9B with a primary seal 15, and the outer edge side of the spacer 3, that is, the peripheral edge side of the multilayer glass 1 is sealed with a secondary seal 16. As the spacer 3, an elastic resin spacer obtained by extruding a resin material in a string shape is used, or the peripheral portion is sealed with the resin spacer itself, and the primary seal 15 and the secondary seal 16 are omitted. Various design changes can be made without departing from the gist of the present invention, such as those having various cross-sectional shapes.

  Since the resonance member 2 is disposed closer to the hollow layer 17 than the spacer 3, the resonance member 2 is more easily affected by the expansion and contraction of the hollow layer 17. Therefore, the interface where the resonance member 2 and the plate glass 9 (9A, 9B) are bonded is exposed to a severer environment than the primary seal 15 provided at the interface between the spacer 3 and the plate glass 9 (9A, 9B). It becomes.

[First Reference Example]
FIG. 2A is a partial cross-sectional view around the resonance member of the multilayer glass according to the first reference example.

  As shown in the figure, the resonance member 2 having a small hole 10 is interposed between the two glass sheets 9A and 9B. A fixing material 4 having no elasticity is interposed between one side surface (left side in the figure) of the rigid body portion 2a of the resonance member 2 and the first plate glass 9A. That is, the facing portion of the resonance member 2 facing the first plate glass 9 </ b> A is fixed to the first plate glass 9 </ b> A on the bonding surface 5 through the fixing material 4. On the other hand, the facing portion of the resonance member 2 facing the second plate glass 9B is in airtight contact with the second plate glass 9B on the non-bonding surface 6 and is not bonded to the second plate glass 9B. As the fixing material 4, for example, an adhesive such as an epoxy resin, a silicon resin, or an acrylic resin can be used. By forming the resonance member 2 made of the rigid portion 2a and the fixing material 4 to be thicker than the distance between the plate glasses 9A and 9B, the plate glasses 9A and 9B spread outward and bend, and the multilayer glass 1 is formed. The By mounting the resonance member 2 with the plate glasses 9A and 9B spread outward in this manner, the resonance member 2 always receives elastic compression / tensile force from the plate glasses 9A and 9B on both sides. Therefore, within the predetermined limit that can be assumed, even if the hollow layer 17 expands and contracts due to a temperature change, the resonance member 2 is always kept in contact with the glass plates 9A and 9B on both sides.

  In addition, the facing portion of the resonance member 2 that is not bonded to the second glass plate 9B maintains an airtight state to the extent that the sound insulation performance is exhibited without significantly inhibiting the resonance action of the resonance member 2. Thus, the non-bonding surface 6 is in contact with the second glass sheet 9B.

  In this specification, “the facing portion of the resonance member facing the second plate glass is in airtight contact with the second plate glass” means that the resonance member is not bonded to the second plate glass 9B. It means that the facing portion in 2 is in contact with the second glass plate 9B while maintaining an airtight state to the extent that the sound insulation performance is exhibited without significantly inhibiting the resonance action of the resonance member. In order to achieve this, for example, it is assumed that there is a path that connects the hollow layer 17 and the cavity 21 at the contact interface between the facing portion of the resonance member facing the second plate glass and the second plate glass. However, the maximum value of the diameter of the communication path may be smaller than the diameter of the small hole 10 and the total cross-sectional area of the entire communication path may be less than 1/10 of the total cross-sectional area of the entire small hole 10.

  When the double-glazed glass is mounted on the opening of the building, in order to reduce the deterioration of the fixing material 4 due to the influence of direct sunlight, particularly ultraviolet rays, the facing portion of the resonance member 2 that is not bonded to the second glass plate 9B It is preferable that the side glass, that is, the second plate glass 9B is the outdoor side, and the first plate glass 9A is arranged on the indoor side.

  In FIG. 2A, the first plate glass 9A and the second plate glass 9B are shown to be greatly warped outward, but this is the incorporation of the resonance member 2 between the plate glasses 9A and 9B. In order to explain the state, it is schematically exaggerated. The same applies to other figures in this specification.

  FIG. 2B shows a modification of the first reference example.

  As shown in the figure, an adhesive layer 18 having elasticity is provided at the facing portion of the resonance member 2 facing the second glass plate 9B, and the non-adhesive surface 6 is configured by a film 7 covering the surface of the adhesive layer 18. The configuration, operation, and effect of are the same as those in the example of FIG.

  If the adhesive layer 18 as an elastic member is compressed in advance, and the resonance member 2 composed of the fixing material 4, the rigid portion 2a, the adhesive layer 18, and the film 7 is interposed between the plate glasses 9A and 9B, the hollow layer 17 When the distance between the glass sheets 9A and 9B increases, the adhesive layer 18 provided in a compressed state is restored, and the non-contact surface 6 of the resonance member 2 follows and contacts the glass sheet 9B. The state can be maintained. For this reason, there is no gap between the resonance member 2 and the glass sheet 9B, and the optimum sound insulation performance can be maintained with the resonance member 2 having a resonance frequency corresponding to the unique resonance frequency of the multilayer glass 1. . On the contrary, when the hollow layer 17 contracts and the glass sheets 9A and 9B bend inward, the adhesive layer 18 is elastically deformed and contracts following this. Further, even if the plate glass 9B is partially warped, minute uneven, or undulated, such as when the plate glass 9B is distorted by heat treatment or the like in the manufacturing process, the adhesive layer 18 is compressed according to this shape for resonance. The member 2 can be reliably clamped between the plate glasses 9A and 9B. Note that the adhesive layer 18 on the facing portion side of the resonance member 2 facing the second plate glass 9B is not only made of an elastic material, but also the facing portion of the resonance member 2 facing the first plate glass 9A. The fixing material 4 on the side may also be made of an elastic material. In that case, different materials and physical properties may be used as the adhesive layer 18 and the fixing material 4, but it is preferable to use the same material. The fixing material 4 configured as the adhesive layer 18 or the elastic member can absorb the distortion and warpage of the glass sheets 9A and 9B, minute irregularities, waviness, and the like, and between the glass sheets 9A and 9B accompanying the expansion and contraction of the hollow layer 17. It is desirable to have a thickness that can absorb the variation in distance. The thickness is preferably 0.3 mm to 2 mm, and more preferably 0.5 mm to 1.5 mm.

  As the film 7, for example, a film having no adhesiveness such as polyethylene terephthalate (PET) is used. The thickness of the film 7 is preferably 10 to 100 μm, and 50 to 50% in order to maintain the contact state with the plate glass interface without causing creases in the film 7 without inhibiting the elasticity of the adhesive layer 18 having elasticity. More preferably, it is 75 μm. The side surface of the resonance member 2 to which the film 7 is attached is not bonded to the second glass sheet 9B, and forms a non-bonded surface 6. Similar to the resonance member 2 and the fixing material 4, the adhesive layer 18 and the film 7 are preferably transparent in appearance.

  In this example, the surface of the adhesive layer 18 is covered with the film 7 in the facing portion of the resonance member 2 facing the second glass plate 9B, and the non-adhesive surface 6 is formed. Various non-adhesive processes such as adsorbing an object on the adhesive layer 18 or losing the adhesive function of the adhesive layer 18 by applying a thermal, chemical or mechanical process to the surface of the adhesive layer 18. It is possible to apply.

  FIG. 2C shows still another modification of the first reference example.

  In the example of FIG. 2C, an elastic double-sided adhesive tape is used as the fixing material 4, and the opposing portion of the resonance member 2 fixed to the first glass sheet 9A is opposed to the second glass sheet 9B. The configuration, operation, and effects are the same as in the example of FIG. 2B except that both of the opposing portions of the resonance member 2 are curved in a convex shape. That is, as shown in the example of FIG. 3, in the facing portion of the resonance member 2 facing the first plate glass 9 </ b> A, the side surface on the first plate glass 9 </ b> A side of the rigid body portion 2 a of the resonance member 2 is curved in a convex shape. Similarly, the resonance member 2 in which the convex portion 8 ′ curved in a convex shape is formed also on the side surface of the rigid body portion 2a of the resonance member 2 on the second plate glass 9B side is formed. The first glass plate 9A and the second glass plate 9B are disposed between the first glass plate 9A and the second glass plate 9B. These convex portions 8 and 8 'absorb the dimensional error and assembly error between the distance between the two glass plates 9A and 9B determined by the spacer and the width of the resonance member 2, and securely attach the bonding surface 5 to the first. Can be brought into contact with the plate glass 9A. Moreover, it is possible to dramatically suppress the mixing of bubbles during bonding. The projecting lengths r and r ′ of the convex portions 8 and 8 ′ are preferably about 5 to 40% of the thickness of the elastic fixing material 4 and the elastic adhesive layer 18. . Note that the convex portion 8 (8 ′) is formed only on either the facing portion of the resonance member 2 fixed to the first glass plate 9A or the facing portion of the resonance member 2 facing the second plate glass 9B. May be formed. The convex portions 8 and 8 'are preferably formed by curving the side surface of the rigid body portion 2a itself and providing the surface with the fixing material 4 and the adhesive layer 18 having a uniform thickness (see FIG. 3) For example, the side surface of the rigid body portion 2a itself has a linear cross-sectional shape, and the fixing material 4 and the adhesive layer 18 having different thicknesses are provided on the surface in the height direction of the rigid body portion 2a. You may comprise the convex parts 8 and 8 'curved convexly on the side.

  In the case where the fixing material 4 in FIG. 2 (B) is made of an elastic material, or in the example of FIG. 2 (C), both the fixing material 4 and the adhesive layer 18 are elastic adhesive materials. The same double-sided adhesive tape may be used as the fixing material 4 and the adhesive layer 18. That is, the resonance member 2 is disposed between the plate glasses 9A and 9B via the double-sided adhesive tape on both side surfaces of the rigid portion 2a made of a rigid member that does not deform. When assembling the multi-layer glass 1 of this example, the small hole 10 is made in the rigid body portion 2a of the rod-shaped material used as the resonance member 2, and the release paper on one side of the double-sided adhesive tape is peeled off and attached to both side surfaces. wear. The release paper on the other side of the double-sided adhesive tape is still attached. That is, at this stage, both side surfaces of the resonance member 2 are non-adhesive surfaces. Thereafter, the release paper on one side is peeled off, and the resonance member 2 is bonded to a predetermined position of the first glass sheet 9A. At this time, since the double-sided adhesive tape on the opposite side is covered with the release paper, it remains a non-adhesive surface and does not degrade the workability of the assembly work. In addition, you may provide the film of the specification which is hard to release in advance as a non-adhesion process of the side used as the non-adhesion surface 6 with respect to the 2nd glass plate 9B. Next, the second glass sheet 9B is disposed on the side of the double-sided adhesive tape with the release paper (non-adhesive surface 6 side), and the multilayer glass is sandwiched between the two glass sheets 9A and 9B and the resonance member 2 is sandwiched between them. 1 is formed. The release paper here includes a resin film and the like.

[Second Reference Example]
FIG. 4A is a partial cross-sectional view around the resonance member of the multilayer glass according to the second reference example.

  As shown in the drawing, the multi-layer glass according to the second reference example is the same as the multi-layer glass according to the first reference example of FIG. The configuration is different only in that the adhesive surface 5 is adhered to the first plate glass 9A via the material 11. That is, in FIG. 2A, the adhesive material 11 is used instead of the fixing material 4 between the first glass plate 9A and the resonance member 2.

  Adhesive materials are also called pressure-sensitive adhesives. They can be bonded by applying a little pressure at room temperature for a short time, and because they have cohesive strength and elasticity, they adhere strongly, but they must be peeled off from a hard, smooth surface. It is something that can be done. For this reason, it can be applied easily and can be easily removed. As the adhesive material 11, for example, an acrylate copolymer, an ethylene / vinyl acetate copolymer (EVA), polyvinylidene chloride (PVDC), or the like can be used. With such an adhesive material 11, the facing portion of the resonance member 2 that opposes the first plate glass 9 </ b> A is adhered to the first plate glass 9 </ b> A on the bonding surface 5 through the adhesive material 11. Therefore, when the resonance member 2 is bonded to the first glass sheet 9A, it can be attached again, and the workability of positioning the resonance member 2 with respect to the first glass sheet 9A is improved. Other configurations, operations, and effects are the same as those in the example of FIG.

  It should be noted that it is not easy to quantitatively distinguish between adhesion and fixation. For example, for convenience, the resonance member 2 is bonded to one sheet glass 9 (9A, 9B), and the width of the bonded interface is 15 mm or less and the length is 4000 mm or less. After attaching 2, in a state where it stands at an angle of 60 degrees or more with respect to the horizontal plane, no drop occurs due to the weight of the resonance member 2 and the peeling force caused by the handling of the plate glass 9 such as movement and rotation. It is also possible to define a bonding state that has a bonding force and can be partially peeled at any time without causing physical residual deformation with a force of 9.8 N or less as required. However, in this specification, an adhesive state in which the effect described as being obtained when the adhesive is obtained is defined as an adhesive.

  When the multilayer glass according to this reference example is installed in an opening of a building, the second plate glass is used to reduce deterioration of the adhesive material 11 due to the influence of direct sunlight, particularly ultraviolet rays, as in the case of the first reference example. It is preferable that the glass on the opposite side in the resonance member 2 that is not bonded to 9B, that is, the second plate glass 9B is the outdoor side, and the first plate glass 9A is arranged on the indoor side.

  FIG. 4B shows a modification of the second reference example.

  As shown in the figure, in the facing portion of the resonance member 2 facing the second glass plate 9B, the surface of the adhesive layer 18 having elasticity is covered with the film 7 and the non-adhesive surface 6 is configured. The same as the example of A). In addition, in the facing portion of the resonance member 2 facing the second glass plate 9B, the action and effect obtained by covering the surface of the adhesive layer 18 having elasticity with the film 7 and configuring the non-bonding surface 6 is shown in FIG. This is the same as the example.

  FIG. 4C shows still another modification of the second reference example.

  In the example of FIG. 4C, an elastic double-sided adhesive tape is used as the pressure-sensitive adhesive material 11, and the opposing portion of the resonance member 2 that is adhered to the first plate glass 9A is opposed to the second plate glass 9B. The configuration, operation, and effects are the same as in the example of FIG. 4B except that both of the opposing portions of the resonance member 2 are curved in a convex shape. In addition, the action and effect obtained by curving the facing portion of the resonance member 2 adhered to the first plate glass 9A and the facing portion of the resonance member 2 facing the second plate glass 9B in a convex shape are illustrated in FIG. This is the same as the example of 2 (C).

[First Embodiment]
FIG. 5A is a cross-sectional view of the periphery of the resonance member of the multilayer glass according to the first embodiment of the present invention.

  As illustrated, the resonance member 2 is adhered to the plate glasses 9A and 9B by the adhesive materials 11 and 11 on both sides of the rigid portion 2a. For this reason, even if the bonding position of the resonance member 2 to the plate glasses 9A and 9B is wrong, the resonance member 2 can be easily peeled off and reattached. The adhesive material 11 can be integrally formed simultaneously with the rigid body portion 2a by resin extrusion. By integrally molding in this way, there is no need to provide the adhesive material 11 in the resonance member 2 in a separate process, so the number of work steps is reduced and the production efficiency is good. The adhesive material 11 is preferably transparent in appearance together with the resonance member 2.

  In FIG. 5A, the adhesive materials 11 and 11 are made of a soft resin having elasticity, and the resonance member 2 and the plate glasses 9A and 9B are adhered to each other through the elastic member, thereby deforming the first embodiment of the present invention. Configure an example. Other configurations, operations, and effects are the same as those in the first embodiment.

  The first plate glass 9A, the second plate glass 9B, and the resonance member 2 are adhered to each other through the adhesive materials 11 and 11 as elastic materials, whereby the distance between the two glass plates 9A and 9B determined by the spacer 3 and the resonance are used. It is possible to absorb the dimensional error and assembly error between the width of the member 2 and reliably bring the bonding surfaces 5 and 5 into contact with the glass plates 9A and 9B. In addition, the soft adhesive material 11 with respect to the expansion and contraction of the hollow layer 17 described above can absorb the expansion and contraction of the width between the plate glasses 9A and 9B with a certain degree of followability, and can maintain the adhesion with the plate glasses 9A and 9B. . The amount of expansion / contraction of the width between the plate glasses 9A and 9B can be obtained by calculation based on the size of the plate glasses 9A and 9B, the thickness of the hollow layer 17, and the assumed temperature change. For example, when the temperature of the double-glazed glass 1 in which two glass plates 9A and 9B of 350 mm × 500 mm square and a thickness of 8 mm and 5 mm are formed with a width of 10 mm of the hollow layer 17 is changed from 20 ° C. to 50 ° C., the resonance member 2 It will bend about 0.7mm outside at the part where it is arranged. In this case, if the soft adhesive materials 11 and 11 are compressed in advance by 0.35 mm each, when the distance between the glass plates 9A and 9B increases, the adhesive materials 11 and 11 provided in the compressed state are restored. In addition, since the adhesion between the resonance member 2 and the plate glasses 9A and 9B can be maintained, there is no gap between the resonance member 2 and the plate glasses 9A and 9B, and the inherent resonance frequency of the multilayer glass 1 changes. Therefore, the optimum sound insulation performance can be maintained with the resonance member 2 having a resonance frequency corresponding to the resonance frequency.

  Conversely, when the hollow layer 17 contracts and the plate glasses 9A and 9B bend inward, the adhesive material 11 is elastically deformed and contracts following this. Further, even if the plate glasses 9A and 9B are partially warped, such as when the plate glasses 9A and 9B are distorted by heat treatment or the like in the manufacturing process, the adhesive material 11 is compressed according to this shape and the resonance member 2 is compressed. Can be securely sandwiched between the glass plates 9A and 9B.

  FIG. 5B shows still another modification of the first embodiment of the present invention.

  As shown in the drawing, the configuration, operation, and effects other than the curved portions of the facing portions of the resonance member 2 facing the first plate glass 9A and the second plate glass 9B are convex, respectively. This is the same as the modification. That is, the adhesive member 11 having elasticity is provided on both side surfaces of the resonance member 2 and the convex portion 8 configured to be convexly curved is provided (see FIG. 6C). The action and effect obtained by curving the facing portion of the resonance member 2 adhered to the plate glasses 9A and 9B in a convex shape are the same as in the example of FIG. The convex portion 8 may be formed only on one side surface of the resonance member 2.

  FIG. 5C shows another modification of the first embodiment.

  In this example, the main body 2 b of the resonance member 2 is formed of the adhesive material 11. In this example, since the resonance member 2 is formed only by extruding the adhesive material 11, an adhesive material for adhering (adhering) to the plate glasses 9A and 9B is not required. Therefore, since it is not necessary to provide an adhesive material in a separate process, the number of work processes is reduced, the production efficiency is good, the number of parts is reduced, and a simple structure can be formed. In this case, for example, a hard tube material can be inserted into the small hole 10 to suppress deformation of the small hole 10. Other configurations, operations, and effects are the same as those in the example of FIG.

  6 (A) to 6 (C) show the resonance member 2 of the multilayer glass 1 illustrated in FIGS. 5 (A) and 5 (B) according to the first embodiment of the present invention, and the rigid portion 2a is transparent. 2 is a cross-sectional view showing an example in which the adhesive material 11 is made of a transparent soft resin and is integrally formed by extrusion molding. FIG. 6A shows a configuration in which the side surface of the rigid body portion 2a itself has a linear cross-sectional shape, and an adhesive material 11 having a uniform thickness is provided on the surface. FIG. 6B is a cross-sectional shape similar to that of FIG. 6A, but the gap is formed in a groove shape in which the side surface is recessed from the upper and lower ends near the central portion in the height direction of the rigid portion 2a itself. The adhesive material 11 is provided in the space 19 and the outer end surface of the adhesive material 11 is configured to protrude from the side end surface of the rigid portion 2a. In FIG. 6C, the side surface of the rigid body portion 2a itself is formed to be convexly curved, and a pressure-sensitive adhesive material 11 having a uniform thickness is provided on the surface, and the surface of the pressure-sensitive adhesive material 11 is convexly curved. The resonance member 2 in which the shape portion 8 is formed is constituted. When the resonance member 2 is adhered to the glass sheets 9A and 9B with the adhesive materials 11 and 11 and attached to the multilayer glass 1, the soft adhesive material 11 interposed between the rigid portion 2a and the glass sheets 9A and 9B is hollow. It deforms with the expansion and contraction of the layer 17 and absorbs the expansion and contraction of the width between the plate glasses 9A and 9B. At this time, if the adhesive material 11 is formed to have the same width as the rigid body portion 2a, the adhesive material 11 may be deformed and protrude from the upper and lower ends of the rigid body portion 2a. In the case where the two are integrally formed by extrusion molding, as shown in FIGS. 6A to 6C, the adhesive material 11 is formed narrower in the height direction (vertical direction in the drawing) than the rigid body portion 2a. preferable. The small holes 10 may be perforated immediately after extrusion or after a predetermined time has elapsed after extrusion. When the adhesive material 11 is not extruded simultaneously with the rigid portion 2a, a double-sided adhesive tape may be adhered to the rigid portion 2a later.

[Second Embodiment]
FIG. 7A is a cross-sectional view of the periphery of the resonance member of the multilayer glass according to the second embodiment of the present invention.

  As shown in the figure, the facing portion of the resonance member 2 facing the first plate glass 9A is adhered to the first plate glass 9A on the bonding surface 5 via the adhesive material 11 having no elasticity. On the other hand, the facing portion of the resonance member 2 facing the second plate glass 9B is fixed to the second plate glass 9B on the bonding surface 5 'via the non-elastic fixing material 4. Therefore, when the resonance member 2 is bonded to the first glass sheet 9A, it can be attached again, and the workability of positioning the resonance member 2 with respect to the first glass sheet 9A is improved. As shown in FIG. 2 (A), the resonance member 2 is mounted between the plate glasses 9A and 9B by moving the resonance member 2 made of the rigid body portion 2a, the adhesive material 11 and the fixing material 4 from the distance between the plate glasses 9A and 9B. It is sufficient to form a thick film. The operation and effect of such a wearing state are the same as in FIG. 2A (first reference example).

  7A, at least one of the adhesive material 11 facing the first plate glass 9A or the fixing material 4 facing the second plate glass 9B is used as a material having elasticity, and the resonance member 2 and the plate glass 9A, The modification of 2nd Embodiment of this invention is comprised by adhere | attaching 9B via an elastic member. Other configurations, operations, and effects are the same as those in the second embodiment.

  By bonding (adhering or adhering) the resonance member 2 to the plate glasses 9A and 9B via an elastic member, a dimensional error between the distance between the two plate glasses 9A and 9B determined by the spacer 3 and the width of the resonance member 2 is obtained. Further, it is possible to absorb the assembly error and reliably bring the bonding surfaces 5 and 5 'into contact with the glass plates 9A and 9B. Further, the adhesive material 11 or the fixing material 4 having elasticity with respect to the expansion and contraction of the hollow layer 17 absorbs the expansion and contraction of the width between the plate glasses 9A and 9B with a certain degree of followability, and adheres to the plate glasses 9A and 9B. Can hold state.

  FIG. 7B shows still another modification of the second embodiment of the present invention.

  As shown in the drawing, the opposing portions of the resonance member 2 facing the first plate glass 9A and the second plate glass 9B are respectively curved in a convex shape, and the adhesive material 11 and the second plate glass facing the first plate glass 9A. The structure, operation, and effect are the same as those of the modified example of the second embodiment except that the fixing material 4 facing 9B is made of an elastic material. The effect | action and effect by having curved the opposing part in the resonance member 2 adhere | attached (adhesion or adhering) with respect to plate glass 9A, 9B are the same as that of the example of FIG.2 (C).

[ Reference example ]
FIG. 8 is a cross-sectional view of the periphery of the resonance member of the multilayer glass according to the reference example .

  As illustrated, the resonance member 2 is interposed between the two sheet glasses 9A and 9B. The resonance member 2 has a rigid portion 2a made of a rigid member bonded (fixed) to the plate glasses 9A and 9B with structural adhesives 20 and 20 provided on both side surfaces thereof. As the structural adhesive 20, for example, an epoxy resin or the like can be used, and various adhesives may be used as long as they can structurally bond the resonance member 2 and the plate glasses 9A and 9B. In FIG. 8, only the structural adhesive 20 is shown between the resonance member 2 and the glass sheets 9A and 9B. Instead of this structural adhesive 20, for example, a structural adhesive is provided on both sides of a highly rigid substrate. You may use the double-sided adhesive tape which has the contact bonding layer which consists of. The structural adhesive 20 is preferably transparent together with the resonance member 2. Instead of the structural adhesive 20, a fixing material capable of permanent adhesion that is not as strong as structural adhesion may be used, but it is more preferable to use a structural adhesive.

  With this configuration, the resonance member 2 is structurally bonded to the two plate glasses 9A and 9B, and the resonance member 2 and the plate glasses 9A and 9B are integrated so firmly that they cannot be peeled off. Even if the hollow layer 17 of the layer glass 1 expands or contracts due to a change in internal pressure due to a temperature change, the resonance member 2 is not peeled off from the plate glasses 9A and 9B accordingly. Therefore, during the long-term use of the multi-layer glass 1, even if the plate glass 9A, 9B tries to bend due to the expansion and contraction of the hollow layer 17, the resonance member 2 is structured into the plate glass 9A, 9B while maintaining its shape by the rigid portion 2a. Since it is bonded, no bubbles are generated between the resonance member 2 and the glass sheets 9A and 9B due to a decrease in adhesive force, and the sound insulation performance by the resonance member 2 is stabilized without deteriorating the appearance of the multilayer glass 1. Can be obtained. Therefore, the bending of the glass plates 9A and 9B around the resonance member 2 is prevented, and since the resonance member 2 is disposed in the vicinity of the spacer 3, the bending of the plate glass in the portion where the spacer 3 is arranged can be suppressed, The burden of force on the primary seals 15 and 15 and the secondary seal 16 that seal between the spacer 3 and the plate glasses 9A and 9B is reduced. As a result, deterioration of the material for sealing these spacers can be prevented, and the moisture permeability durability of the multilayer glass 1 is increased.

[Other Embodiments]
Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

  The adhesive material 4 and the pressure-sensitive adhesive material 11 are provided with adhesive layers on both sides of a substrate such as a resinous film, in addition to those exhibiting predetermined adhesive strength and elasticity with time or by heating and cooling after being pasted in paste form. A double-sided adhesive tape may be used. In this case, a double-sided adhesive tape may be formed by alternately providing two or more base materials and three or more adhesive layers, or the base material itself or the adhesive layer itself may be composed of a plurality of layers. Not only the double-sided adhesive tape but also various other adhesive materials may be used, an adhesive layer composed of a plurality of layers may be configured.

  Moreover, you may adhere | attach the glass plate 9 (9A, 9B) and the member 2 for resonance through an elastic member, without making the adhering material 4 or the adhesion material 11 itself into an elastic material. For example, the base material of the double-sided adhesive tape may be an elastic material, and an adhesive layer that is not elastic may be provided on both sides of the base material. Further, as shown in FIGS. 9 and 10, the plate glass 9 (9 </ b> A, 9 </ b> B) and the resonance member 2 are elastically bonded (fixed or adhered) without using the fixing material 4 or the adhesive material 11 itself as an elastic material. You can also

  FIG. 9 is a cross-sectional view of the periphery of the resonance member bonding portion of the multilayer glass according to a modification of the first reference example and the second reference example. In this example, a fin-like portion 12 is formed on both sides of the rigid portion 2a of the resonance member 2 to provide elasticity. One fin-like portion 12 (left side in the figure) is fixed to the glass sheet 9 </ b> A through the fixing material 4 to form the bonding surface 5. The other fin-shaped part 12 (right side in the figure) forms a non-adhesive surface 6 for the glass sheet 9B. Even with such a configuration, the fin-like portion 12 elastically expands and contracts in the left-right direction according to the bending of the plate glasses 9A and 9B while maintaining the contact of the non-contact surface 6 with the plate glass 9.

  FIG. 10 is a cross-sectional view of the periphery of the resonance member bonding portion of the multilayer glass according to a modification of the first reference example and the second reference example. In this example, the rigid body portion 2a of the resonance member 2 is divided into two in the middle of the width direction, and an elastic material 13 such as gel-like silicon is enclosed therebetween. One side surface (the left side in the figure) of the resonance member 2 is fixed to the plate glass 9 </ b> A through the fixing material 4. The other side surface (the right side in the figure) is a non-adhesive surface 6 that contacts the plate glass 9B in a non-adhesive state. By making the fixing material 4 elastic and further providing the elastic material 13 inside the resonance member 2 in this way, in addition to the elasticity of the fixing material 4, the elasticity of the elastic material 13 is further added. The followability to the expansion and contraction of the interval between 9B increases.

  As the glass sheets 9A and 9B, soda lime silica glass generally used for construction is representative, but not limited thereto, glass sheets of other compositions can also be used. Similarly, in addition to ordinary soda lime silica glass, tempered plate glass, double strength plate glass, mold plate glass, heat ray absorbing plate glass, heat ray reflecting plate glass, plate glass with various surface treatments, meshed plate glass, and laminated glass are also used. It is also possible to use a combination of plate glasses having different types and thicknesses such as one side plate glass being laminated glass and the other side being ordinary soda lime silica glass. In addition to inorganic plate glass, organic plate-like bodies such as polycarbonate and acrylic resin can also be used.

  The double-glazed glass 1 generally has a configuration in which dry air or nitrogen gas is enclosed in the hollow layer 17, but instead of this, for the main purpose of improving heat insulation performance, sulfur hexafluoride gas is contained in the hollow layer. Alternatively, a multilayer glass in which argon gas or krypton gas is sealed may be used. When these gases are enclosed, a wave energy loss due to a difference in sound speed between the media occurs, and an effect of improving the sound insulation performance is obtained.

  The present invention can be applied to multi-layer glass used for buildings, vehicles, ships, aircrafts, and the like.

The schematic diagram (front view) which shows the outline of the multilayer glass which concerns on a 1st reference example. The schematic diagram (BB sectional drawing) which shows the outline of the multilayer glass which concerns on a 1st reference example. The schematic diagram which shows the outline of the multilayer glass which concerns on a 1st reference example (partial perspective view of the multilayer glass bottom part vicinity). Sectional drawing of the member for resonance of the multilayer glass which concerns on a 1st reference example. Sectional drawing of the member for resonance of the multilayer glass which concerns on a 1st reference example. Sectional drawing of the member for resonance of the multilayer glass which concerns on a 2nd reference example. Sectional drawing of the member periphery for resonance of the multilayer glass which concerns on 1st Embodiment of this invention. Sectional drawing of the member for resonance of the multilayer glass which concerns on 1st Embodiment of this invention. Sectional drawing of the member for resonance of the multilayer glass which concerns on 2nd Embodiment of this invention. Sectional drawing of the member periphery for resonance of the multilayer glass which concerns on a reference example . Sectional drawing of the periphery of the resonance member adhesion part of the multilayer glass which concerns on the modification of a 1st reference example and a 2nd reference example. Sectional drawing of the periphery of the resonance member adhesion part of the multilayer glass which concerns on the modification of a 1st reference example and a 2nd reference example.

Explanation of symbols

1: multi-layer glass, 2: resonance member, 2a: rigid body part, 2b: main body, 3: spacer, 4: fixing material, 5 ': adhesive surface, 6: non-adhesive surface, 7: film, 8, 8 ': convex part, 9 (9A, 9B): plate glass, 10: small hole, 11: adhesive material, 12: fin-like part, 13: elastic material, 14: desiccant, 15: primary seal, 16: two Next seal, 17: hollow layer, 18: adhesive layer, 19: void, 20: structural adhesive, 21: void

Claims (4)

A resonance member is interposed at the periphery of the plate glass and in parallel with the spacer between at least two plate glasses that are multi-layered so that a hollow layer is formed by a spacer disposed at the periphery of the plate glass. Multi-layer glass,
Opposing portions in the resonance member facing the first plate glass and the second plate glass constituting the two plate glasses are respectively an acrylic ester copolymer on the first plate glass and the second plate glass, A multi-layer glass characterized by being adhered by being adhered through an adhesive material made of either ethylene / vinyl acetate copolymer (EVA) or polyvinylidene chloride (PVDC). A resonance member is interposed at the periphery of the plate glass and in parallel with the spacer between at least two plate glasses that are multi-layered so that a hollow layer is formed by a spacer disposed at the periphery of the plate glass. Multi-layer glass,
Of the two plate glasses, the opposing portion of the resonance member that faces the first plate glass is formed of an acrylic ester copolymer, an ethylene / vinyl acetate copolymer (EVA), or polyvinylidene chloride on the first plate glass. (PVDC) is adhered by being adhered through an adhesive material composed of any of the following:
The multi-layer glass, wherein a facing portion of the resonance member facing the second plate glass of the two plate glasses is bonded to the second plate glass by being fixed thereto.   3. The multilayer glass according to claim 1, wherein an elastic member is provided at a facing portion of the resonance member bonded to the first plate glass and / or the second plate glass.   The multilayer glass according to claim 3, wherein a surface of the resonance member in contact with the elastic member is curved in a convex shape.

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